18963 Alternative catch monitoring of Alaskan groundfish. Project Published / External 7285 Special Projects Project Completed These data arise from a field study of groundfish catch monitoring in Kodiak, AK trawl fisheries. Two monitoring components were included in the study: 1) at-sea sampling methods used by observers to sample species composition of catch and 2) shore-side sampling of delivered catch by observers to validate landings species composition reports. The at-sea portion of the study consisted of a side-by-side comparison (two observers) of a proposed new sampling method and the standard sampling method. Observer data were recorded at-sea on paper and transferred to an Oracle database. The shoreside component of this study consisted of observer species composition sampling in plants for later comparison with landings data. The shore-side data were collected by observers in processing plants, recorded on paper and transferred to an Oracle database. Data collection started in April 2011 and continued through August 2011. Third party landings data (NOAA Fisheries, Alaska Regional Office, Sustainable Fisheries Division) that were used in the analysis are stored in an oracle database. Data for both project components (at-sea and shoreside) were collected during normal fishing activities onboard commercial trawl catcher vessels and during normal processing activities in shore-based processing plants. NPRB Research Project: This project investigated whether proposed changes to how observer data are collected on catcher vessels that deliver to shoreside processors result in greater accuracy and precision of catch estimates. The first component of the project compared standard and alternative methods of sampling catch that will be discarded at-sea (bycatch component), while the second component examined the effectiveness of using observer data to verify the accuracy of species identification on industry reports of retained catch (retained catch component). Specifically, the objectives of this project were to test (1) whether alternative at-sea sampling methods are (a) feasible aboard small catcher vessels in Alaska, and (b) result in lower variance in estimates of discard relative to current methods, and (2) test whether the accuracy of retained catch information can be improved through monitoring and verification of species identification by observers. Faunce, C. H., J. A. Cahalan, J. Bonney, R. Swanson. 2013. Alternative catch monitoring of Alaskan groundfish. North Pacific Reseach Board Final Report Project 1017. Theme Alaska groundfish fisheries Theme Gulf of Alaska Theme Kodiak AK Theme at-sea discards Theme bycatch Theme catch estimation Theme fisheries monitoring Theme sampling Theme shoreside processing Theme species identification Temporal 2011 Spatial Gulf of Alaska, Alaska Spatial Kodiak, Alaska Alaska Fisheries Science Center Seattle WA USA Fisheries Monitoring and Analysis Division Project Yes North Pacific Research Board Observer Other Electronic and Paper Metadata Contact 2011-01 Person Turnbull, Doug doug.turnbull@noaa.gov 7600 Sandpoint Way NE Seattle WA 98115 USA (206)526-4053 (206)526-4066 0700-1630 206 526 4053 Originator 2011-01 Person Faunce, Craig craig.faunce@noaa.gov 206 526 4188 Publication Date -120 180 60 42 GOA Gulf of Alaska Discrete 2013-06 Confidential Aggredated data may be provided with proper confidentiality doncuments to other researchers These are confidential data and may not be made available in unaggregated form without proper confidentiality documents on file with FMA Division. NPRB North Pacific Research Board 18964 Data Set gov.noaa.nmfs.inport:18963 Jennifer Cahalan 2013-05-03T14:31:07 SysAdmin InPortAdmin 2023-11-30T18:11:01 2016-05-18 Alaska Fisheries Science Center AFSC 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov 0700-1700 Pacific Time 1001 Public No 2016-05-18 1 Year 2017-05-18